The LS1048A WRIOP and 1588 Timer details are described in the LS1088ADPAA2 manual. It is not public. You should to submit a confedential ticket on https://www.nxp.com/support/support:SUPPORTHOME
I am not sure what can be different in the IEEE 1588V2 (V2 and V1 can be different). Let say the LS1046A and LS1048A have the same IEEE 1588 Timer Module and IEEE 1588 pins. However the Data Path Acceleration Architecture (DPAA) is different on these SOCs. The LS1048A DPAA2 has WRIOP which is able to transmit frames with IEEE1588 PTP correction field updated with the correct value. Please see details in the corresponding manual.
I am aware that LS1046A has DPAA and LS1048A has DPAA2, but couldn't get the specific detail on the PTP1588v2 -TC 1-step/2-step specific to these processors LS1046A versus LS1048A.